I have two LOCK JAW pliers one 10 in and one 6 in they are also go under the sears name automatic and proto ergonomic.  They are the most unhandy grip pliers I have ever tried to use Hhas any one ever used them .I think they are asian but have us patent no,6,591,719
which I have not found yet. bob w.

invented by Lawrenc c mead   patent 2.523.385   1950 mfg ,byH,R, Basford ca .
pantentee  John L. Hostetter   patent 3,116.656  1964 mfg,  by leaverage tools inc  ne
pantentee  John L. Hostetter   patent   re 28,280  1964  mfg  by leaverage tools inc
patentee Daniel & Robert  Poole PATENT 6,591, 719  2003 MFG BY C.H.Hanson Co.ill
  A LOT OF PEOPLE TAKE CREDIT FOR THIS PIECE OF JUNK
bob w.

The adjustment on the Leverage Tools versions is in a slightly different location.  I met a guy on Ebay once who said they were the best thing for his application, but I cannot remember what it was.  I believe Stanley bought out Leverage Tools, and made a version with orange rubber grips.

I have bought and sold several pairs, and never could figure out how to make them work easily.

I have played with them and found not only is the adjuster wheel too small but alsp stuck in a place you can hardly get to it.  bob w.

Hmmmm.... Maybe Papaw should put a permanent heading below WRENCH FORUM titled AWFUL TOOLS.

Quote from: johnsironsanctuary on June 05, 2012, 10:08:29 AM
Hmmmm.... Maybe Papaw should put a permanent heading below WRENCH FORUM titled AWFUL TOOLS.

I don't think the forum could stand the amount of bandwidth that would consume!

Did you ever notice how the most unusual tools still look like new?   Hard to use, or impossible to use, no wonder they didn't show wear.